Bug 836365 - Dialer load performance improvements.

Delay all the things.
Fix all gjslint issues in dialer
Bug 842143 - fix gallery share activity r=daleharvey a=tef+
Merge pull request #8197 from KevinGrandon/bug_836365_dialer_performance

Bug 836365 - Dialer load performance improvements. r=etienne
Merge pull request #8217 from davidflanagan/bug842143

Bug 842143 - fix gallery share activity r=daleharvey a=tef+